Figure 6
Band structures of [111]-oriented GaP nanowires with a hexagonal cross section of the lateral sizes of (a,b) 11.1 nm, (c,d) 22.3 nm. The valence bands of GaP nanowires with hexagonal cross sections are labeled by the symmetries of their states at the Γ-point in correspondence with the irreducible representations, Γ4, Γ5 and Γ6 of the C3v double point group. In the figures, the order of Γ5 and Γ6 corresponds to a band initially has a lower energy after splitting as the wave vector k moves away from the Γ-point.
